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High-brightness scalable continuous-wave single-mode photonic-crystal laser

Realizing large-scale single-mode, high-power, high-beam-quality semiconductor lasers, which rival (or even replace) bulky gas and solid-state lasers, is one of the ultimate goals of photonics and laser physics. Conventional high-power semiconductor lasers, however, inevitably suffer from poor beam...

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Autores principales: Yoshida, Masahiro, Katsuno, Shumpei, Inoue, Takuya, Gelleta, John, Izumi, Koki, De Zoysa, Menaka, Ishizaki, Kenji, Noda, Susumu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10284696/
https://www.ncbi.nlm.nih.gov/pubmed/37316656
http://dx.doi.org/10.1038/s41586-023-06059-8
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author Yoshida, Masahiro
Katsuno, Shumpei
Inoue, Takuya
Gelleta, John
Izumi, Koki
De Zoysa, Menaka
Ishizaki, Kenji
Noda, Susumu
author_facet Yoshida, Masahiro
Katsuno, Shumpei
Inoue, Takuya
Gelleta, John
Izumi, Koki
De Zoysa, Menaka
Ishizaki, Kenji
Noda, Susumu
author_sort Yoshida, Masahiro
collection PubMed
description Realizing large-scale single-mode, high-power, high-beam-quality semiconductor lasers, which rival (or even replace) bulky gas and solid-state lasers, is one of the ultimate goals of photonics and laser physics. Conventional high-power semiconductor lasers, however, inevitably suffer from poor beam quality owing to the onset of many-mode oscillation(1,2), and, moreover, the oscillation is destabilized by disruptive thermal effects under continuous-wave (CW) operation(3,4). Here, we surmount these challenges by developing large-scale photonic-crystal surface-emitting lasers with controlled Hermitian and non-Hermitian couplings inside the photonic crystal and a pre-installed spatial distribution of the lattice constant, which maintains these couplings even under CW conditions. A CW output power exceeding 50 W with purely single-mode oscillation and an exceptionally narrow beam divergence of 0.05° has been achieved for photonic-crystal surface-emitting lasers with a large resonant diameter of 3 mm, corresponding to over 10,000 wavelengths in the material. The brightness, a figure of merit encapsulating both output power and beam quality, reaches 1 GW cm(−2) sr(−1), which rivals those of existing bulky lasers. Our work is an important milestone toward the advent of single-mode 1-kW-class semiconductor lasers, which are expected to replace conventional, bulkier lasers in the near future.
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spelling pubmed-102846962023-06-23 High-brightness scalable continuous-wave single-mode photonic-crystal laser Yoshida, Masahiro Katsuno, Shumpei Inoue, Takuya Gelleta, John Izumi, Koki De Zoysa, Menaka Ishizaki, Kenji Noda, Susumu Nature Article Realizing large-scale single-mode, high-power, high-beam-quality semiconductor lasers, which rival (or even replace) bulky gas and solid-state lasers, is one of the ultimate goals of photonics and laser physics. Conventional high-power semiconductor lasers, however, inevitably suffer from poor beam quality owing to the onset of many-mode oscillation(1,2), and, moreover, the oscillation is destabilized by disruptive thermal effects under continuous-wave (CW) operation(3,4). Here, we surmount these challenges by developing large-scale photonic-crystal surface-emitting lasers with controlled Hermitian and non-Hermitian couplings inside the photonic crystal and a pre-installed spatial distribution of the lattice constant, which maintains these couplings even under CW conditions. A CW output power exceeding 50 W with purely single-mode oscillation and an exceptionally narrow beam divergence of 0.05° has been achieved for photonic-crystal surface-emitting lasers with a large resonant diameter of 3 mm, corresponding to over 10,000 wavelengths in the material. The brightness, a figure of merit encapsulating both output power and beam quality, reaches 1 GW cm(−2) sr(−1), which rivals those of existing bulky lasers. Our work is an important milestone toward the advent of single-mode 1-kW-class semiconductor lasers, which are expected to replace conventional, bulkier lasers in the near future. Nature Publishing Group UK 2023-06-14 2023 /pmc/articles/PMC10284696/ /pubmed/37316656 http://dx.doi.org/10.1038/s41586-023-06059-8 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Yoshida, Masahiro
Katsuno, Shumpei
Inoue, Takuya
Gelleta, John
Izumi, Koki
De Zoysa, Menaka
Ishizaki, Kenji
Noda, Susumu
High-brightness scalable continuous-wave single-mode photonic-crystal laser
title High-brightness scalable continuous-wave single-mode photonic-crystal laser
title_full High-brightness scalable continuous-wave single-mode photonic-crystal laser
title_fullStr High-brightness scalable continuous-wave single-mode photonic-crystal laser
title_full_unstemmed High-brightness scalable continuous-wave single-mode photonic-crystal laser
title_short High-brightness scalable continuous-wave single-mode photonic-crystal laser
title_sort high-brightness scalable continuous-wave single-mode photonic-crystal laser
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10284696/
https://www.ncbi.nlm.nih.gov/pubmed/37316656
http://dx.doi.org/10.1038/s41586-023-06059-8
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